hvirtual/quicktime/ffmpeg/libavcodec/tscc.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include "common.h"
#include "avcodec.h"

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Data Structures
struct	TsccContext
Typedefs
typedef struct TsccContext	CamtasiaContext
Functions
static int	decode_rle (CamtasiaContext *c, unsigned int srcsize)
static int	decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int	decode_init (AVCodecContext *avctx)
static int	decode_end (AVCodecContext *avctx)
Variables
AVCodec	tscc_decoder

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Detailed Description

TechSmith Camtasia decoder

Fourcc: TSCC

Codec is very simple: it codes picture (picture difference, really) with algorithm almost identical to Windows RLE8, only without padding and with greater pixel sizes, then this coded picture is packed with ZLib

Supports: BGR8,BGR555,BGR24 - only BGR8 and BGR555 tested

Definition in file tscc.c.

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Typedef Documentation

typedef struct TsccContext CamtasiaContext

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Function Documentation

static int decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 304 of file tscc.c.

References av_freep(), c, TsccContext::decomp_buf, TsccContext::pic, AVCodecContext::priv_data, and AVCodecContext::release_buffer.

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static int decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 169 of file tscc.c.

References av_log(), AV_LOG_ERROR, TsccContext::avctx, AVPALETTE_SIZE, c, decode_rle(), TsccContext::decomp_buf, TsccContext::decomp_size, FF_BUFFER_HINTS_VALID, AVCodecContext::get_buffer, memcpy, AVCodecContext::palctrl, AVPaletteControl::palette, AVPaletteControl::palette_changed, TsccContext::pic, AVCodecContext::pix_fmt, PIX_FMT_PAL8, AVCodecContext::priv_data, and AVCodecContext::release_buffer.

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static int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 240 of file tscc.c.

References av_log(), AV_LOG_ERROR, av_malloc(), avcodec_check_dimensions(), TsccContext::avctx, AVCodecContext::bits_per_sample, TsccContext::bpp, c, TsccContext::decomp_buf, TsccContext::decomp_size, AVCodecContext::has_b_frames, AVCodecContext::height, TsccContext::height, NULL, TsccContext::pic, AVCodecContext::pix_fmt, PIX_FMT_BGR24, PIX_FMT_PAL8, PIX_FMT_RGB555, PIX_FMT_RGBA32, AVCodecContext::priv_data, and AVCodecContext::width.

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static int decode_rle	(	CamtasiaContext *	c,
		unsigned int	srcsize
	)			[static]

Definition at line 75 of file tscc.c.

References av_log(), AV_LOG_ERROR, TsccContext::avctx, TsccContext::bpp, TsccContext::decomp_buf, TsccContext::height, line, output, TsccContext::pic, and src.

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Variable Documentation

AVCodec tscc_decoder

Initial value:

 {
        "camtasia",
        CODEC_TYPE_VIDEO,
        CODEC_ID_TSCC,
        sizeof(CamtasiaContext),
        decode_init,
        NULL,
        decode_end,
        decode_frame,
        CODEC_CAP_DR1,
}

Definition at line 319 of file tscc.c.

Referenced by avcodec_register_all().